Home / 1,558.45-2,338.53-1,212.49

Finding the Fourth Proportional to 1,558.45, 2,338.53 and 1,212.49

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Solution

The fourth proportional to 1,558.45, 2,338.53 and 1,212.49 is: 1,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.45 : 2,338.53 = 1,212.49 : x
  2. Step 2: Convert to fraction form
    1,558.45/2,338.53 = 1,212.49/x
  3. Step 3: Cross multiply
    1,558.45x = 2,338.53 × 1,212.49
  4. Step 4: Simplify right side
    1,558.45x = 2,835,444.24
  5. Step 5: Solve for x
    x = 2,835,444.24/1,558.45
  6. Step 6: Final answer
    x = 1,819.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.